Which of the following pairs would make a good buffer? a. h2c2o4 and hc2o4- b. hcl and naoh c. ch3cooh and naoh d. hno3 and no3-

How manyatoms of mercury are in 1.4214e+1 ml sample

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together